// 2 patterns from u/ldirko, adapter to fit a single tweet
#include "FastLED.h"
struct CRGB L[256];long e=0;void setup(){LEDS.addLeds<WS2812,3>(L,256);}void loop(){e++;int t=millis()/10,x=0,y=0;for(;y<16;y++)for(x=0;x<16;x++)L[16*x+y]=CHSV((e>>7)%2?x*8+sin8(t/3)^y*8-cos8(t/2):sin8(x*3+t/2)*cos8(y*3+t/3)/64+cos8(x*8),~0,~0);LEDS .show();}